SAN LEANDRO -- An early Friday blaze at a two-story duplex in San Leandro displaced six people, a fire official said.
No residents were injured, but a dog died in the fire.
Fire crews were called at 4:26 a.m. to the duplex at the intersection of Doolittle and Fairway drives for a report of a building on fire, Alameda County fire spokeswoman Aisha Knowles said.
When firefighters arrived they found the bottom and top floors ablaze, Knowles said.
Six people -- three from each unit -- who were home when the fire broke out had escaped safely by the time crews arrived.
Firefighters had the blaze extinguished by 5:20 a.m., officials said.
The cause and origin of the fire remained under investigation Friday.
Matt Knudsen, who lived on the bottom floor of the duplex, said his dog, a yellow Labrador, was right behind him as the two attempted to escape the smoke and flames.
Knudsen, who was having trouble opening his front door as the fire burned, said he remembered turning around and seeing the dog right behind him. But when he was able to get the door open and ran out, his dog didn't follow.
There were too many flames, Knudsen said, to go back in to find his pet.
The American Red Cross responded to the scene to assist the residents with temporary housing.
Staff photographer Laura Oda contributed to this report. Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.